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2009-08-06 09:50:00

The fossil of a unique dinosaur was discovered on Wednesday in China. The fossil of the pterosaur, the first identified flying vertebrate, indicates that the creatures had intricate wing fibers that allowed them to fly with the accuracy and power of birds. The team of Brazilian, German, Chinese and British researchers supports the hypothesis that the pterosaur, or pterodactyl, soared the skies 220 million years ago. A new method that includes pointing ultra-violet rays on the fossil dug up...

2009-04-17 11:34:18

The common research worm, C. elegans, is able to use heat-sensing nerve cells to not only regulate its response to hotter environments, but also to control the pace of its aging as a result of that heat, according to new research at the University of California, San Francisco.The new findings have turned upside down a widespread assumption about how cold-blooded animals respond to and regulate heat, the researchers say. The study is reported in the online early edition of the journal "Current...

2008-06-14 13:27:08

Whether in Canada or the Caribbean, tree leaves don't have to worry about the temperature outside - they have their own built-in climate control that always aims to keep them comfortable, a new study finds. The long-standing view of plant biologists was that the temperature of a photosynthesizing leaf would be the same as that of the surrounding air. But in a survey of 39 tree species ranging over 50 degrees of latitude across North America (between Puerto Rico and Canada), biologists...

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2006-07-12 08:40:00

If you think dinosaurs are hot today, just think back to about 110 million years ago when they really ran hot and heavy. One of the larger animals, a behemoth called Sauroposeidon proteles, weighed close to 120,000 pounds as an adult. Now, a new study led by the University of Florida suggests it may have had a body temperature close to 48 degrees Celsius. That is a 118-degree Fahrenheit normal temperature, about as hot as most living creatures can get before the proteins in their bodies...

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2006-01-23 08:50:00

NASA -- Biologists have long believed that bigger is better when it comes to body size, since many lineages of animals, from horses to dinosaurs, have evolved into larger species over time. But a study published this week by two biologists at the University of California, San Diego in an early online edition of the Proceedings of the National Academy of Sciences suggests that maxim, known as "Cope's Rule," may be only partly true. The scientists found that populations of tiny crustaceans...

2005-07-13 14:25:00

ATHENS, Ohio "“ What could the fierce dinosaur T. rex and a modern songbird such as the sparrow possibly have in common? Their pulmonary systems may have been more similar than scientists previously thought, according to new research from Ohio University and Harvard University. Though some scientists have proposed that predatory dinosaurs had lungs similar to crocodiles and other reptiles, a new study published in this week's issue of the journal Nature suggests the ancient beasts...

2005-07-13 12:02:38

LONDON (Reuters) - Dinosaurs may have been fierce predators but they had a respiratory system similar to modern birds such as the sparrow, scientists said Wednesday. Ancient beasts such as the mighty Tyrannosaurus rex were thought to have had lungs similar to crocodiles but researchers in the United States have discovered the creatures had more in common with birds than reptiles when it came to breathing. "The pulmonary system of meat-eating dinosaurs such as T.rex in fact shares many...

2005-07-13 12:00:00

LONDON -- Dinosaurs may have been fierce predators but they had a respiratory system similar to modern birds such as the sparrow, scientists said Wednesday. Ancient beasts such as the mighty Tyrannosaurus rex were thought to have had lungs similar to crocodiles but researchers in the United States have discovered the creatures had more in common with birds than reptiles when it came to breathing. "The pulmonary system of meat-eating dinosaurs such as T.rex in fact shares many structural...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.